Method for automatic transceiver selection in a mobile multiple RF transceiver apparatus
US6006106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1997 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Mar 7, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multi-radio equipment arrangement comprises multiple transceivers of different band splits. A preferred arrangement utilizes at least one transceiver for communicating on digital "trunked" RF communications system and at least one transceiver for communicating on a wide-area "conventional" RF communications system. The multi-radio equipment transceivers communicate with each other and with an equipment control unit via a common internal serial data bus to form a multi-radio local network. Each transceiver incorporates a microprocessor controller that includes appropriate task management and serial bus interface software routines for operating and communicating with other devices on the bus. The control unit provides a user interface comprising conventional radio equipment front-panel controls. A "trunked" system transceiver is automatically selected whenever its measured audio quality exceeds a predetermined user-programmable minimum level. When audio quality falls below the predetermined level, an auto-select control task (ASCT) automatically switches to the "conventional" RF transceiver in a manner transparent to the user. Evaluations of the audio quality on each transceiver ar…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.